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Endress+Hauser Prosonic FMU 860 User Manual

Endress+Hauser Prosonic FMU 860
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Technical
Information
TI 190F/00/en
Applications
Prosonic FMU 860...862 ultrasonic
transmitters are for use with the
Prosonic FDU 80...86 family of sensors.
The transmitter determines levels in
silos and tanks and calculates the
volume of solids and liquids they
contain.
With the appropriate certified sensor,
measurements can be made in
explosion hazardous areas, zone 1 or in
combustible dusts.
When used for applications in fresh and
waste-water, Prosonic measures
flow rates in flumes and weirs
water levels
and can control screen cleaning and
pumps.
Features and Benefits
A customised instrument programme for
the specific application.
Choice of transmitters
For the field or control room
Single or two-channel versions with
three or five relays, also with optional
totaliser
With optional serial interface for
remote configuration (INTENSOR or
HART protocol)
With RS-485 interface
Intelligent commissioning, ultrasonic
measurement par excellence
Instrument parameters arranged in a
simple matrix
Various linearisation functions,
totalisers, and all common Q/h curves
on call
Quick commissioning and stable
measurement thanks to signal pattern
recognition by fuzzy logic and the
application parameter
Ultrasonic Measurement
prosonic FMU 860…862
Level and flow measurement with ultrasonics
Simple to start up, easy to use, flexible
Field mounted ultrasonic transmitters
The Prosonic ultrasonic
transmitter in the IP 66
protective housing
Hauser+Endress
The Power of Know How

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Endress+Hauser Prosonic FMU 860 Specifications

General IconGeneral
BrandEndress+Hauser
ModelProsonic FMU 860
CategoryMeasuring Instruments
LanguageEnglish

Summary

Applications

Features and Benefits

Measuring System

Transmitters and Applications

Prosonic FMU 860

Water level measurement, e.g. for controlling water inflow and outflow, or for pump control.

Prosonic FMU 861

Flow rate measurement in flumes or weirs to determine water level with millimeter accuracy.

Prosonic FMU 862

Two-channel unit for differential level measurement, e.g. for controlling the screen cleaning process.

Operation and Signal Processing

Principle of Operation

An ultrasonic pulse is emitted and reflected by the surface. Height is calculated from the echo signal's run time.

Simple Operation

The keypad configures the transmitter and displays parameters on a 4 1/2 character display.

Simple Start-Up

Minimizes start-up time using preset parameters, automatically setting the measuring line for typical applications.

Complete Functionality

Details on level measurement characteristic curves and flow rate measurement Q/h characteristic curves.

Remote Operation

Handheld Terminal

Operating the transmitter via serial interface with a handheld terminal for easier input and information access.

Electrical Connection

Ensuring minimum resistance in the circuit for correct transmission of the communications signal.

Operation via Commuwin II

Connecting intrinsically safe Smart transmitters to a PC via Commubox FXA for remote operation.

System Integration

Other System Components with an RS-485 Rackbus interface

Hardware and software for connecting to PCs and Rackbus systems via RS-485 interface.

Connecting to Process Control Systems

Linking the Prosonic FMU 86... to existing process control systems via the RS-485 interface.

Housing Versions

Field operation

The transmitter electronics are built into an IP 66 housing for wall or post mounting.

Control room operation

Operating unit separated from transmitter electronics, for control cabinet or assembly rack mounting.

Mounting

Explosion Hazardous Areas

For certified systems, sensor in hazardous area, transmitter in safe area. Observe local regulations.

Accessories

All-Weather Cover for the Protective Housing

Accessories for mounting and protecting the IP 66 housing, available in aluminum or stainless steel.

Post Mounting

Accessories for mounting the transmitter on posts, available in galvanized steel or stainless steel.

Commulog VU 260 Z

Handheld terminal for Prosonic with integrated serial interface and INTENSOR protocol.

HART Communicator DXR 275

Handheld terminal with integrated serial interface for HART protocol.

Converter: RS 232C/RS 485 Interface

Converter for connecting a PC to the RS-485 interface for bus communication.

RS 485 PC Interface Card

Interface card for connecting a PC to the RS-485 interface for bus communication.

Electrical Connection

Spare Sensor Cable

Connection cables for Prosonic FMU 86... transmitters to various FDU sensors.

Overvoltage Protection in IP 66 Protective Housing

Overvoltage protection unit for power supply in the IP 66 protective housing.

Overvoltage Protection and Power Supply Unit for Sensor Heating in IP 66 Protective Housing

Power supply unit for sensor heating with integrated overvoltage protection.

Power Supply

Details on alternating and direct voltage inputs, power consumption, and ripple with smart transmitters.

Terminal Strip

Terminal strip for cable diameters up to 2.5 mm², with prestamped cable entries.

Sensor Cable

Connection via supplied or extension cable, specifying maximum values for resistance and capacitance.

Electrical Isolation

Current output, relay outputs, power connection and sensor inputs are electrically isolated.

Connecting to a Separate Keypad

Connecting a separate keypad to the transmitter electronics via a cable.

Connection and Synchronizing

Terminal strip of the FMU 860...862

Diagram showing terminal connections for FMU 860/861/862, including isolated areas.

Modified terminal strip for the Prosonic RS 485

Diagram of a modified terminal strip for RS-485, specifically for the version with three relays.

Synchronizing Connection

Connecting up to 20 devices over a synchronizing connection for parallel sensor lines over long distances.

Technical Data

General Information

Manufacturer, instrument, technical documentation, version, and core application data.

Application

Specifies non-contact, continuous level measurement, flow determination, and pump control applications.

Operation and System Design

Details measuring principle (ultrasonic echo) and modularity for FMU 860, 861, and 862.

Input

Specifies measured variable (time of flight) and measuring range based on ultrasonic sensors.

Output

Details output signals (4-20 mA, 0-20 mA), error signals, current limit, integration time, and load.

Accuracy

Relays

Information on relay version (three or five), functions (limit, alarm, trend), and switching power.

Measured error

Typical error percentage for linearity, hysteresis, and reproducibility with smooth surfaces.

Max. resolution

Maximum resolution specified as 1 mm for FDU 80 sensors.

Process Conditions

Details ambient temperature, storage temperature, shock resistance, climatic class, and ingress protection.

Electromagnetic compatibility

Specifies EMC requirements for AC and DC power supplies according to industry standards.

Materials

Details materials used for IP 66 housing, IP 40 housing, IP 10 plate, and separate operating unit.

Accessories

Information on materials and weight for protective covers and post mounting accessories.

Display and Operating Interface

Display and operating elements in IP 66 field housing

Describes the LCD display, LEDs for status and errors, and software counters.

Communication interfaces

Details handheld terminals, Commuwin II program, Rackbus RS 485, and synchronizing connection interfaces.

Power Supply

Lists AC and DC power supply options, power consumption, and ripple characteristics.

Certificates and Approvals

Mentions CE Mark confirmation of compliance with relevant EC directives.

Product Structure

Instrument versions

Details available instrument versions for level, flow, and differential measurement.

Certificates

Specifies certificate types, including Standard and CSA General Purpose.

Housing for electronics

Defines housing options: IP 66 field, IP 40 remote, and IP 10 panel mounting.

Versions for operation/display/totaliser for flow measurement

Describes various operation/display versions, with or without totaliser, for flow measurement.

Relays

Specifies relay options: three or five potential-free change-over contacts.

Power supply

Lists available power supply options including AC and DC voltage ranges.

Interface/protocol

Details available interface and protocol options: none, INTENSOR, HART, or Rackbus RS-485.

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